Sleep Hygiene: Building Better Sleep Habits

Keep a Consistent Sleep Schedule

Your body runs on a circadian rhythm, an internal clock that regulates when you feel alert and when you feel sleepy. That clock is anchored primarily by light exposure and, crucially, by consistency. Going to bed and waking up at roughly the same time every day, including weekends, helps keep that rhythm stable.

Sleeping in on weekends might feel restorative, but it can actually shift your internal clock and make Sunday nights harder to fall asleep. This pattern, sometimes called social jet lag, has been linked in research to poorer mood, increased fatigue, and metabolic disruption. A consistent wake time is probably the single most powerful anchor for healthy sleep.

Pay Attention to Light

Light is the primary signal your brain uses to set its internal clock. Bright light in the morning helps you feel alert and tells your body it is daytime. In the evening, exposure to bright light, especially the blue-spectrum light from phones, tablets, and computer screens, can suppress melatonin production and delay the onset of sleep.

Practically speaking, getting outside or near a bright window in the morning is genuinely helpful. And in the hour or so before bed, dimmer, warmer light is less disruptive than overhead fluorescents or screen glare. You do not have to give up your phone entirely; just be mindful of how bright your screen is and how close to bedtime you are using it.

Create a Wind-Down Routine

Falling asleep is not a switch you flip. It is a gradual process, and the hour before bed sets the tone. A predictable wind-down routine, even a simple one, signals to your nervous system that sleep is coming.

That might look like taking a shower, reading something unrelated to work, doing some light stretching, or just sitting quietly. What it should not look like is catching up on stressful emails, watching something that ramps up your heart rate, or having a heated conversation right before you try to sleep. Your autonomic nervous system needs time to shift from sympathetic activation (alert, reactive) to the parasympathetic state (calm, restful) that supports sleep.

Watch What You Eat and Drink

Caffeine has a half-life of roughly five to seven hours, which means a 3 PM coffee still has a significant amount of caffeine circulating in your system at 8 PM. For people who are sensitive to caffeine, cutting off consumption after noon is a reasonable experiment.

Alcohol is often misunderstood as a sleep aid. It does help some people fall asleep faster, but it disrupts sleep architecture later in the night, reducing REM sleep and increasing the chance of waking in the early morning hours. The net effect on sleep quality is negative.

Large meals close to bedtime can also interfere with sleep, as digestion keeps the body more active than ideal for sleep onset. A light snack is generally fine; a heavy dinner an hour before bed is not.

Make Your Bedroom a Sleep-Friendly Environment

Temperature, noise, and light all affect sleep quality. Most sleep researchers suggest a cooler room (around 65 to 68 degrees Fahrenheit for most people) is optimal, as body temperature naturally drops during sleep and a cool environment supports that process.

If noise is an issue, a white noise machine or fan can mask disruptive sounds without creating the kind of irregular auditory stimulation that wakes you up. Blackout curtains or a sleep mask can help if your room gets early morning light.

What to Do When You Cannot Sleep

One of the most counterproductive things you can do when you cannot sleep is lie in bed awake for a long time, growing increasingly frustrated. This trains your brain to associate the bed with wakefulness and anxiety rather than rest.

If you have been awake for more than 20 to 30 minutes and cannot fall back asleep, sleep specialists generally recommend getting out of bed and doing something calm and low-light in another room until you feel sleepy, then returning to bed. It feels counterintuitive, but it works. This approach is the basis of one component of Cognitive Behavioral Therapy for Insomnia (CBT-I), which is considered the gold-standard treatment for chronic insomnia.

When Habits Are Not Enough

Good sleep hygiene helps most people sleep better, but it is not a cure-all. If you have been consistently practicing these habits and still struggle significantly with sleep, it is worth talking to a healthcare provider. Conditions like insomnia disorder, sleep apnea, restless leg syndrome, and others have specific treatments that go beyond behavioral changes.

Sleep is not a luxury. It is a biological necessity, and it is worth taking seriously.

Sources: American Academy of Sleep Medicine (aasm.org); Walker M., Why We Sleep (2017); Morin CM et al., Journal of Consulting and Clinical Psychology; National Sleep Foundation (sleepfoundation.org)